Answer:

Step-by-step explanation:
You have been asked to find the values in the function:

First, calculate A, called the amplitude, as half the value from peak to peak (from lowtide to high tide):

Then, calculate the vertical shift D as the average value between the high tide and lowtide:

Then, if P is the natural period of the tide, you can calculate B, or the frequency as:

Finally you need to find C or the phase shift thinking that for negative values, the function is shifted (displaced) to the right.
C=-6.75
Answer:
Step-by-step explanation:
132°
Answer:
∠1 is 33°
∠2 is 57°
∠3 is 57°
∠4 is 33°
Step-by-step explanation:
First off, we already know that ∠2 is 57° because of alternate interior angles.
Second, it's important to know that rhombus' diagonals bisect each other; meaning they form 90° angles in the intersection. Another cool thing is that the diagonals bisect the existing angles in the rhombus. Therefore, 57° is just half of something.
Then, you basically just do some other pain-in-the-butt things after.
Since that ∠2 is just the bisected half from one existing angle, that means that ∠3 is just the other half; meaning that ∠3 is 57°, as well.
Next is to just find the missing angle ∠1. Since we already know ∠3 is 57°, we can just add that to the 90° that the diagonals formed at the intersection.
57° + 90° = 147°
180° - 147° = 33°
∠1 is 33°
Finally, since that ∠4 is just an alternate interior angle of ∠1, ∠4 is 33°, too.
Answer:
The red line segment is also 8.
Step-by-step explanation:
The center to a point on a cirlce is always equal.